CVE-2026-10024
Deferred Deferred - Pending Action

Stored XSS in TinyMCE Shortcode Addon WordPress Plugin

Publication date: 2026-06-09

Last updated on: 2026-06-09

Assigner: Wordfence

Description
The TinyMCE shortcode Addon plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'btnrel' Shortcode Attribute in all versions up to, and including, 1.0.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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Meta Information

Published
2026-06-09
Last Modified
2026-06-09
Generated
2026-06-29
AI Q&A
2026-06-09
EPSS Evaluated
2026-06-28
NVD
CVE-2026-10024
EUVD
EUVD-2026-35303

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
tinymce shortcode_addon to 1.0.0 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

The TinyMCE shortcode Addon plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in all versions up to and including 1.0.0. This vulnerability arises due to insufficient input sanitization and output escaping of the 'btnrel' shortcode attribute.

Authenticated attackers with contributor-level access or higher can exploit this flaw to inject arbitrary web scripts into pages. These scripts execute whenever any user accesses the injected page.

Impact Analysis

This vulnerability can allow attackers with contributor-level access to inject malicious scripts into WordPress pages. When other users visit these pages, the malicious scripts execute in their browsers.

  • It can lead to theft of user credentials or session tokens.
  • It can enable unauthorized actions on behalf of users.
  • It can compromise the integrity and trustworthiness of the affected website.
Compliance Impact

The vulnerability allows authenticated attackers with contributor-level access and above to inject arbitrary web scripts via stored cross-site scripting (XSS). This can lead to unauthorized access to user data or session hijacking when users access the injected pages.

Such unauthorized access or data exposure could potentially violate data protection regulations like GDPR or HIPAA, which require safeguarding personal and sensitive information against unauthorized access or disclosure.

However, the provided information does not explicitly state the direct impact on compliance with these standards.

Mitigation Strategies

The vulnerability affects the TinyMCE shortcode Addon plugin for WordPress in all versions up to and including 1.0.0. Immediate mitigation steps include updating the plugin to a version that fixes the vulnerability once available, or temporarily disabling the plugin to prevent exploitation.

Since the vulnerability allows authenticated users with contributor-level access and above to inject malicious scripts, reviewing and restricting user permissions can reduce risk.

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